Apparatus for feeding and tempering foundry-sand.



No. 696,787. Patented Apr. I, I902.

A. M. ACKLIN.

APPARATUS FOR FEEDING AND TEMPERING FOUNDRY SAND.

'Applmatiun med Oct. 23, 1901.,

(No Model.)

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UNITED STATES PATENT CEEICE.

ALFRED M. AGKLIN, OF PITTSBURG, PENNSYLVANlA.

APPARATUS FQR FEEDING AND TEMPERING FOUNDRY-SAND.

SPECIFICATION forming part of Letters Patent No. 696,787, dated April 1,1902.

Application filed October 28. 1901. $erial No. 79,688. (No model.)

T0 on whom it may concern:

Be it known that I, ALFRED M. ACKLIN, a resident of Pittsburg, in thecounty of Al legheny and State of Pennsylvania, have invented a new anduseful Improvement in Apparatus for Feeding and Tenipering Foundry-Sand,&c.; and I do hereby declare the following to be a full, clear, andexact description thereof.

My invention relates to feeding and tempering foundry-sand and the like,and has for its object to provide a cheap, simple, and effective devicefor such purposes which will automatically feed and temper the sanddelivered thereto.

My invention consists, generally stated, in the novel arrangement,construction, and combination of parts, as hereinafter more specificallyset forth and described, and particularly pointed out in the claims.

To enable others skilled in the art to which my invention appertains toconstruct and use my improved device, I will describe the same morefully, referring to the accompanying drawings, in which-- Figure 1 is aside view, partly in section, showing my improved device for feeding andtempering foundry-sand. Fig. 2 is a vertical central section on the line2 2, Fig. 1, looking in the direction of the arrow. Fig. 3 is a top viewof the feeder-pan, showing its connections and with the receptacle orhopper removed; and Figs. 4, 5, and 6 areviews of other forms of myinvention.

Like symbols of reference herein indicate like partsin each of thefigures of the draw ings.

The device is shown at A, and consists of the receptacle or hopper 1,which is of the ordinary approved construction, provided with thefilling-opening 2'at its top and the discharge-opening 3 at its bottom.Extending under the discharge-opening 3 of the hopper 1 is thefeeder-pan 4, which is provided with the sides 4 thereon, the open top5, bottom 5, and open ends 6 6. The feeder-pan lies a weight 18.

upon the bottom 5 of the feeder-pan 4 is the feeder -bar 14, which isprovided with the wings or scrapers 15, extending out on each sidethereof and within the feeder-pan 4, while the ends 16 of the feeder-bar14extend beyond the open ends 6 6 of the pan 4 and are provided withnotches or seats 17 at each end thereof. Extending through the frame 7and under the pan 4 is the reciprocating bar 18, which is provided withthe upwardly-projecting ends 19, and to this reciprocating bar 18 aconnecting-rod 20 is pivoted at one end 20, while its opposite end ispivoted at 21 to a crank 21, mounted on a shaft 22, operated by a belt22, applied to a pulley 22 on said shaft 22 or to any source of power asdesired. Supported adjacent to said hopper 1 in any suitable manner isthe water-tank 23, which can be of any approved construction and towhich a pipe 24 is connected, which leads to and opens over thefeeder-pan 4, preferably under the discharge-opening 3 in the hopper 1,and said pipe 24 is provided with a regulator-valve 25 and athrottle-valve 26 therein, and to this throttle-valve 26 a lever 27 isattached, which is connected by a rod 28 to the feeder-pan 4. e

The use and operation of my improved de vice for feeding and temperingfoundry-sand and the like are as follows: The bar 18 within the frame 7is reciprocated continuously during the time that it is desired to feedor temper the material by the rod 20,connected to the crank 21 or to anyother means or source of power, and sand being brought to the hopper 1by an elevator, conveyer, or any other suit-- able means is dumped ordischarged into the hopper 1 through the filling-opening 2 at the topthereof and into the feeder-pan 4.

through the discharge-opening 3 at the bottom of said hopper 1 andthrough the open top A or scrapers 15 on said bar It will force alongthe sand dropped from the hopper 1 through the opening 3 into the pan 4and discharge a predetermined quantity of the same alternately at theend 6 and the end 6' into any suitable conveyer or receptacle, and thisoperation will continue as long as there is sufficient sand in thehopper 1 and pan 4 to hold the pan in the depressed position. After thesupply of sand has thus been discharged from the pan 4 through the ends6 6 thereof the pan will be raised by means of the lever S and weight 13and carry with it the feederbar ltwhich will be disengaged from the ends19 on the reciprocating bar18, so that the pan =I and bar 14 will beraised to their positions under the hopper 1 while another quantity ofsand is being discharged from said hopper 1 into the pan it. As thefeeder-pan 4 containing the sand to be fed is thus lowered thethrottle-valve 26 on the pipe 24 is opened through the lever 27,connected thereto,being lowered by the rod 23, connected to said lever27 and pan 4, which will cause water to pass from the tank 23 throughthe pipe 24, throttle-valve 26, and regulator-valve 25 and be dischargedinto the charge of sand within the feeder-pan 4 or into the sand as itfalls into the conveyer or receptacle below. Upon the return or raisingof said pan at to the higher position the water will be shut off in thepipe 24 by the lever 27 on the throttle-valve 26 being raised to closesaid valve 26 by the rod 28 being connected to the pan 4. and so supplya suiticient quantity of water to the sand in the pan 4to temper thesame. In the absence of sand in the pan i said pan will be held in thehighest position by means of the lever 8 and weight 13, and when it isin such position the throttlevalve 26 is closed by the rod 28.

In Fig. at I have shown the device as having the pan 4 provided with abar 29, secured longitudinally thereon, which bar is pivoted at 30, andthereby does away with the weight 13 and lever S, fulcrumed at 9, and inthis case the feeder 1% can be provided with only a single seat 17 forengaging with one end 19 of the reciprocating bar 18.

It will be obvious that the bar 11 can be dispensed with and two levers8, provided with weights 13, used and connected directly with theangle-plates 12 on the pan 4, such as is shown in Fig. 3, and that aweighted lever 27, such as is shown in Fig. 1, can be connected to thethrottle-valve 26 to close the same in case a chain is used, as in Fig.2, be tween the pan 4 and lever 27 in place of the rod 28, and thatother means than levers and weights can be used on the feeder-pan, sothat it maybe depressed when a sufficient amount of material has beenplaced within the same and hopper, such as the spring 13, (shown in Fig.6,) which is connected at one end to the lever 8 and to the base orfloor or any other desired place at its opposite end,which spring 13 isused in place of the weights 13 and will return the pan 4 to place afterit is depressed.

Springs may also be used directly beneath the pan for supporting thesame, if desired.

The device can be used for the mixing and feeding of other materialsthan sandsuch as cement, &c.which also would require water to bedischarged into the same to make the same plastic, such as is shown inFig. 5, in which another device B is connected to A by a link 31,pivoted to the ends of each feederbar 14, and the materials fed from thefeederpans 4 by a single reciprocating bar 18, engaging with one of thebars 14. In this case the cement can be fed into the device B and thesand into the device A and such materials fed from the ends of thefeeder-pans 4 by the bars 1t into a conveyor or receptacle, where theywould receive the water or the water could be fed into the pans asdesired.

It will be evident that the pan 4 can be attached to the hopper 1 andboth lowered and raised together, if desired, and various othermodifications, changes, and uses may be resorted to without departingfrom the spirit of the invention or sacrificing any of its advantages.

The device is simple and positive in its construction and operation, andby its use a fixed amount of material can be discharged or delivered ateach stroke of the device and a predetermined amount of water can bedelivered to such material.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a device for feeding and tempering foundry-sand, &c., thecombination with a receptacle or hopper, of a feeder-pan under saidhopper, a feeder-bar within said feederpan, means engaging with saidfeeder-pan to lower and raise the same, a reciprocating bar havingprojections thereon engaging with recesses in the feeder-bar to move thesame and discharge the material from said pan, and means forreciprocating said bar.

2. In a device for feeding and tempering foundry-sand, &c., thecombination with a receptacle or hopper, of a feeder-pan under saidhopper, a feeder-bar within said feederpan, a fulcrumed lever pivoted tosaid pan and provided with a weight thereon to raise the pan, areciprocating bar adapted to engage with the feeder-bar to move the sameand discharge the material from said pan,and means for reciprocatingsaid bar.

3. In a device for feeding and tempering foundry-sand, &c., thecombination with a receptacle or hopper, of a feeder-pan under saidhopper, a feeder-bar within said feederpan, a fulcrumed lever pivoted tosaid pan and provided with a weight thereon to raise the pan, areciprocating bar having projections thereon engaging with recesses inthe feeder-bar to move the same and discharge the material from saidpan, and means for reciprocating said bar.

4. In a device for feeding and tempering foundry-sand, &c., thecombination with a receptacle or hopper, of a feeder-pan under ICC saidhopper, a feeder-bar within said feederpan, means for lowering andraising said feeder-pan, a reciprocating bar adapted to engage withthefeeder-bar to move the same and discharge the material from said pan,means for reciprocating said bar, andmeans for supplying water to saidmaterial.

5. In a device for feeding and tempering foundry-sand, &c.,thecombination with a receptacle or hopper, of a feeder-pan under 'saidhopper, a feeder-bar within said feederpan,means for lowering andraising said feeder-pan, a reciprocating bar adapted to engage with thefeeder-bar to move the same and discharge the material from said pan,means for reciprocating said bar, and a pipe connected to a water sourceand adapted to supply Water to the material.

6. In a device for feeding and tempering foundry-sand, &c.,thecombination with a receptacleor hopper, of a feeder-pan under saidhopper, a feeder-bar Within said feeder- -,-pan, means for lowering andraising said feeder-pan, a reciprocating bar adapted to engage with thefeeder-bar to move the same and discharge the material from said pan,

engage With the feederbar to move the same and discharge the materialfrom saidpan, means for reciprocating said bar, a pipe connected to aWatersource and provided with a valve therein, a lever on said valve,and a baror chain connected to said pan and lever for opening andclosing said valve to supply water tothe material. I

In testimony whereof I, the said ALFRED M. LAOKLIN, have hereunto set myhand.

ALFRED M. ACKLIN.

Witnesses:

J. N. Comm, J. L. TREFALLER, Jr.

